EDIT : the tag say I install Unity 2D, but the problem was there even where there was not unity-2d on the computer
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/760091 Title: Mouse become unusable after some time on Unity -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs